Hydraulic drive suction full-automatic self-cleaning filter applied to thermal industry

Abstract

The utility model relates to the field of filter application, in particular to a hydraulically-driven suction full-automatic self-cleaning filter applied to the thermal industry, which comprises a shell, a water outlet pipe, a pressure gauge, a manual faucet and a hydraulic controller are sequentially and fixedly connected to the outer surface of the shell, and a water inlet pipe is fixedly connected to the lower end of the shell. An inner cavity of the shell is fixedly connected with a filtering assembly, the upper end of the shell is fixedly connected with a mounting cover through a plurality of bolts, the interior of the mounting cover is fixedly connected with a dirt suction assembly, and the lower end of the dirt suction assembly extends into the filtering assembly. When impurities are accumulated on the inner wall of the fine filter screen, the dust collection assembly is driven to rotate and move up and down through the pressure difference between the coarse filter screen and the fine filter screen, the impurities on the surfaces of the filter screens are sucked through the suction nozzles, and therefore self-cleaning of the filter is completed, the filter screens do not need to be frequently replaced, and waste of material resources and electric power resources is effectively avoided.

Description

Technical Field

[0001] The utility model relates to a full-automatic self-cleaning filter, in particular to a hydraulically driven suction full-automatic self-cleaning filter which is applied to the field of filter application and is applied to the thermal industry. Background Art

[0002] The water-to-water heat exchange station heating system uses water as the medium, and uses a heat exchanger to exchange hot water before it is ultimately delivered to the user. Due to heating water quality issues, based on the cleaning of heat exchangers and user maintenance in recent years, it has been found that a large amount of biological slime, sediment, rust, and a certain amount of solid matter such as calcium carbonate and magnesium carbonate will be produced in the water supply.

[0003] Traditional T-type, basket-type, and vertical plug-in plate filters have low precision and cannot effectively intercept impurities. After a long period of gradual sedimentation, they are easy to clog the heating pipeline, reduce the heat exchange efficiency, and cause the heating equipment (valves, electric valves, etc.) to be stuck and not closed tightly, affecting the safe operation of the heating equipment. It will also cause a decrease in the circulating water flow, an increase in the operating load of the water pump, and an increase in power consumption, affecting the heating effect.

[0004] Existing filters generally use filter bags and disposable non-metallic filter elements. The filter bags and filter elements need to be replaced after a period of use, which is cumbersome and requires water supply to be cut off during replacement, thus affecting operations. Most self-cleaning filters are usually powered by electricity, and long-term use also wastes electricity, thereby causing a waste of material and electrical resources. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the utility model is that the existing filters use filter bags and disposable non-metallic filter elements, which take a long time to replace. Not only is the operation cumbersome, but the operation will also be affected by water outage during the replacement period. Most self-cleaning filters are usually powered by electricity, and long-term use will waste electricity, thereby causing a waste of material and electrical resources.

[0006] To solve the above problems, the present utility model provides a hydraulically driven suction full-automatic self-cleaning filter applied to the thermal industry, which includes a housing. The outer surface of the housing is sequentially fixedly connected with a water outlet pipe, a pressure gauge, a manual faucet and a hydraulic controller. The lower end of the housing is fixedly connected with a water inlet pipe. A filtering component is fixedly connected to the inner cavity of the housing. The upper end of the housing is fixedly connected with a mounting cover through a plurality of bolts. A sewage suction component is fixedly connected inside the mounting cover. The lower end of the sewage suction component extends into the filtering component. A sewage discharge pipe is fixedly connected to the surface of the mounting cover. The filtering component includes a coarse filter screen threadedly mounted on the inner bottom wall of the housing. There are two fine filter screens above the coarse filter screen. The lower fine filter screen is fixedly connected to the coarse filter screen by bolts. The two fine filter screens are threadedly connected to each other. The sewage suction component includes a solenoid valve fixedly installed inside the mounting cover. The upper end of the mounting cover is fixedly connected with a mounting partition plate. A first spring is fixedly connected to the inner top wall of the mounting partition plate. The lower end of the first spring is fixedly connected with a spring support. The upper end of the solenoid valve is fixedly connected with the lower end of the spring support. The lower end of the solenoid valve is fixedly connected with a hydraulic motor. The lower end of the hydraulic motor is rotatably connected with a chamber partition plate. The lower end of the chamber partition plate is fixedly connected with a dust collecting pipe. A plurality of dust suction components are fixedly sleeved on the outer surface of the dust collecting pipe. The dust suction component includes two fixing rings sleeved on the outer surface of the dust collecting pipe. The two fixing rings are fixedly connected by bolts. A suction nozzle is fixedly connected to the outer surface of one of the fixing rings. A mounting rod is fixedly connected to the outer surface of the suction nozzle. The end of the mounting rod away from the suction nozzle is fixedly connected with an outer rod. A second spring is fixedly connected to the circular inner wall of the outer rod. The other end of the second spring is fixedly connected with an extension rod. The end of the extension rod away from the second spring movably penetrates through the outer rod and is fixedly connected with a scraper.

[0007] In the above-mentioned hydraulically driven suction full-automatic self-cleaning filter applied to the thermal industry, impurities in water are filtered by two-stage filter screens. When impurities accumulate on the inner wall of the fine filter screen, due to the pressure difference between the coarse and fine filter screens, the dust suction components are driven to rotate and move up and down, and the suction nozzles are used to suck the impurities on the surface of the filter screen, thus completing the self-cleaning of the filter. Not only does it not need to frequently replace the filter screen, but it also effectively avoids the waste of material resources and power resources.

[0008] As a further improvement of the present application, a fixing plug is inserted into the lower end of the dust collecting pipe. The lower end of the hydraulic motor is also fixedly connected with a dust collector shaft. The lower end of the dust collector shaft sequentially penetrates through the chamber partition plate, the dust collecting pipe, the fixing plug and the coarse filter screen.

[0009] As a further improvement of the present application, the directions of adjacent two suction nozzles are opposite. A plurality of through holes corresponding to the plurality of dust suction components are respectively drilled on the outer surface of the dust collecting pipe.

[0010] As a further improvement of the present application, the upper end of the upper fine filter screen is threadedly connected with a mounting ring. Gasket rings are provided at the lower end of the coarse filter screen and the upper end of the mounting ring. The coarse filter screen is located directly above the water inlet pipe.

[0011] As another improvement of the present application, the pressure gauge, the solenoid valve, and the hydraulic motor are all signal-connected to the hydraulic controller.

[0012] To sum up, in the actual application process, water flows into the interior of the housing through the water inlet pipe, and is subjected to secondary filtration through the coarse filter screen and the fine filter screen, so as to filter the impurities in the water flow. The filtered water flow is discharged through the water outlet pipe, and the impurities accumulate on the inner wall of the fine filter screen to form an impurity layer, causing the pressure inside the fine filter screen to be greater than the pressure outside the fine filter screen, thereby forming a pressure difference. When the pressure difference reaches the set value, the solenoid valve and the hydraulic motor are started. Due to the pressure difference and the centrifugal force of the hydraulic motor, the dust collecting pipe is driven to rotate and move up and down. The impurities on the surface of the fine filter screen are sucked through the negative pressure at the suction nozzle and discharged through the sewage pipe, realizing a comprehensive cleaning of the fine filter screen, and there is no need to cut off the water during the cleaning process, thereby effectively reducing the waste of material resources and power resources. Description of the Drawings

[0013] Figure 1 It is a schematic structural view of the first embodiment of the present application;

[0014] Figure 2 It is an exploded view of the structure of the first embodiment of the present application;

[0015] Figure 3 It is a schematic structural view of the housing of the first embodiment of the present application;

[0016] Figure 4 It is an exploded view of the structure of the filter assembly of the first embodiment of the present application;

[0017] Figure 5 It is a schematic structural view of the mounting cover of the first embodiment of the present application;

[0018] Figure 6 It is an exploded view of the structure of the sewage suction assembly of the first embodiment of the present application;

[0019] Figure 7 It is a schematic structural view of the dust suction assembly of the second embodiment of the present application;

[0020] Figure 8 It is a sectional view of the outer rod structure of the second embodiment of the present application.

[0021] Description of the reference numerals in the drawings:

[0022] 1 housing, 2 water outlet pipe, 3 pressure gauge, 4 manual faucet, 5 hydraulic controller, 6 mounting cover, 7 sewage pipe, 8 coarse filter screen, 9 fine filter screen, 10 solenoid valve, 11 mounting partition, 12 first spring, 13 hydraulic motor, 14 compartment partition, 15 dust collecting pipe, 16 dust collector shaft, 17 fixing ring, 18 suction nozzle, 19 mounting rod, 20 outer rod, 21 second spring, 22 extension rod, 23 scraper. Specific embodiments

[0023] The following will describe in detail two embodiments of the present application with reference to the accompanying drawings.

[0024] The first embodiment:

[0025] Figure 1 、 Figure 2 and Figure 3 show: A hydraulically driven suction full-automatic self-cleaning filter applied to the thermal industry, including a housing 1. An outlet pipe 2, a pressure gauge 3, a manual faucet 4, and a hydraulic controller 5 are sequentially and fixedly connected to the outer surface of the housing 1. Those skilled in the art can select a suitable model of the pressure gauge 3 according to actual needs, for example: YTN-100B. Those skilled in the art can select a suitable model of the hydraulic controller 5 according to actual needs, for example: LD-B10-10E. The lower end of the housing 1 is fixedly connected with an inlet pipe. A filter assembly is fixedly connected to the inner cavity of the housing 1. The upper end of the housing 1 is fixedly connected with a mounting cover 6 through a plurality of bolts. A sewage suction assembly is fixedly connected inside the mounting cover 6. The lower end of the sewage suction assembly extends into the filter assembly. A sewage discharge pipe 7 is fixedly connected to the surface of the mounting cover 6. A coarse filter screen 8 is located directly above the inlet pipe. The pressure gauge 3, the solenoid valve 10, and the hydraulic motor 13 are all in signal connection with the hydraulic controller 5. Those skilled in the art can select a suitable model of the solenoid valve 10 according to actual needs, for example: 2231015-14BAC220V. The pressure gauge 3 performs pressure detection through two pressure sensors respectively installed on the inner and outer walls of the fine filter screen 9, so as to monitor the pressure difference inside and outside the fine filter screen 9 in real time, and facilitate timely transmission of signals into the hydraulic controller 5 for cleaning the filter screen. Those skilled in the art can select a suitable model of the pressure sensor according to actual needs, for example: MX-YL-T. The pressure sensor is a prior art and will not be elaborated here.

[0026] Figure 4 show: The filter assembly includes a coarse filter screen 8 threadedly installed on the inner bottom wall of the housing 1. Two fine filter screens 9 are provided above the coarse filter screen 8. The lower fine filter screen 9 is fixedly connected to the coarse filter screen 8 through bolts. The two fine filter screens 9 are threadedly connected. The upper end of the upper fine filter screen 9 is threadedly connected with a mounting ring. Gasket rings are provided at the lower end of the coarse filter screen 8 and the upper end of the mounting ring. The water is filtered twice by the fine filter screen 9 and the coarse filter screen 8, thereby improving the filtration efficiency. The fine filter screen 9 is spliced and installed between the coarse filter screen 8 and the housing 1, which can effectively reduce the installation cost.

[0027] Figure 5 and Figure 6Shown: The sewage suction assembly includes a solenoid valve 10 fixedly installed inside the installation cover 6. The upper end of the installation cover 6 is fixedly connected with an installation partition 11. The inner top wall of the installation partition 11 is fixedly connected with a first spring 12. The lower end of the first spring 12 is fixedly connected with a spring support, which facilitates the installation of the first spring 12. The upper end of the solenoid valve 10 is fixedly connected with the lower end of the spring support. The lower end of the solenoid valve 10 is fixedly connected with a hydraulic motor 13. The lower end of the hydraulic motor 13 is rotatably connected with a chamber partition 14. The lower end of the chamber partition 14 is fixedly connected with a dust collecting pipe 15. The outer surface of the dust collecting pipe 15 is fixedly sleeved with a plurality of dust suction assemblies. The lower end of the dust collecting pipe 15 is inserted with a fixing plug, which seals the lower end of the dust collecting pipe 15. The lower end of the hydraulic motor 13 is also fixedly connected with a dust collector shaft 16. The lower end of the dust collector shaft 16 sequentially penetrates through the chamber partition 14, the dust collecting pipe 15, the fixing plug, and the coarse filter screen 8. The dust suction assembly includes two fixing rings 17 sleeved on the outer surface of the dust collecting pipe 15. The two fixing rings 17 are fixedly connected by bolts. The outer surface of one of the fixing rings 17 is fixedly connected with a suction nozzle 18. The fixing ring 17 fixes the suction nozzle 18 to the dust collecting pipe 15. The directions of adjacent two suction nozzles 18 are opposite. A plurality of through holes corresponding to the plurality of dust suction assemblies are drilled on the outer surface of the dust collecting pipe 15. The impurities sucked by the suction nozzle 18 enter the interior of the dust collecting pipe 15 through the through holes and are then discharged through the sewage discharge pipe 7.

[0028] During use, water flows into the interior of the housing 1 through the water inlet pipe and is filtered twice through the coarse filter screen 8 and the fine filter screen 9, thereby filtering the impurities in the water. The filtered water is discharged through the water outlet pipe 2. The impurities accumulate on the inner wall of the fine filter screen 9 to form an impurity layer, making the pressure inside the fine filter screen 9 greater than the pressure outside the fine filter screen 9, forming a pressure difference. When the pressure difference reaches the set value, the solenoid valve 10 and the hydraulic motor 13 are started. Through the pressure difference and the centrifugal force of the hydraulic motor 13, the dust collecting pipe 15 is driven to rotate and move up and down. The impurities on the surface of the fine filter screen 9 are sucked at the suction nozzle 18 and then discharged through the sewage discharge pipe 7, realizing a full cleaning of the fine filter screen 9, and there is no need to cut off water during the cleaning process, thereby effectively reducing the waste of material resources and power resources.

[0029] The second embodiment:

[0030] On the basis of the first embodiment, this embodiment adds an installation rod 19, an outer rod 20, a second spring 21, an extension rod 22, and a scraper 23, and the rest is the same as the first embodiment.

[0031] The figure shows that an installation rod 19 is fixedly connected to the outer surface of the suction nozzle 18. One end of the installation rod 19 away from the suction nozzle 18 is fixedly connected to an outer rod 20. A second spring 21 is fixedly connected to the circular inner wall of the outer rod 20. The second spring 21 facilitates the inward contraction of the extension rod 22 when subjected to pressure, so that the length of the extension rod 22 can be adjusted. The other end of the second spring 21 is fixedly connected to the extension rod 22. One end of the extension rod 22 away from the second spring 21 movably penetrates through the outer rod 20 and is fixedly connected to a scraper 23. The scraper 23 can scrape the hard impurity layer on the inner wall of the fine filter screen 9.

[0032] During use, when the dust collection pipe 15 rotates and moves up and down, the outer rod 20 also rotates and moves up and down following the suction nozzle 18. And during the movement, the scraper 23 is in contact with the inner wall of the fine filter screen 9 to scrape the impurities on the inner wall of the fine filter screen 9, breaking the harder impurity scale on the inner wall of the fine filter screen 9. And during the scraping process, since the water flow continuously flows and continues to pass through the fine filter screen 9 and is discharged from the water outlet pipe 2, the impurities still adhere to the inner wall of the fine filter screen 9. After scraping, the impurities on the surface of the fine filter screen 9 are then sucked by the suction nozzle 18, thereby effectively improving the suction efficiency of the suction nozzle 18 and shortening the cleaning time of the filter.

[0033] Combined with the current actual needs, the above-mentioned implementation manner adopted in this application, the scope of protection is not limited to this. Within the scope of knowledge possessed by those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A hydraulically driven suction full-automatic self-cleaning filter applied to the thermal power industry, including a housing (1), characterized in that: An outlet pipe (2), a pressure gauge (3), a manual faucet (4), and a hydraulic controller (5) are successively fixedly connected to the outer surface of the housing (1). A water inlet pipe is fixedly connected to the lower end of the housing (1). A filtering assembly is fixedly connected to the inner cavity of the housing (1). The upper end of the housing (1) is fixedly connected to a mounting cover (6) by a plurality of bolts. A sewage suction assembly is fixedly connected inside the mounting cover (6). The lower end of the sewage suction assembly extends into the filtering assembly. A sewage discharge pipe (7) is fixedly connected to the surface of the mounting cover (6). The filtering assembly includes a coarse filter screen (8) threadedly mounted on the inner bottom wall of the housing (1). Two fine filter screens (9) are provided above the coarse filter screen (8). The lower fine filter screen (9) is fixedly connected to the coarse filter screen (8) by bolts. The two fine filter screens (9) are threadedly connected to each other. The sewage suction assembly includes a solenoid valve (10) fixedly installed inside the mounting cover (6). An installation partition plate (11) is fixedly connected to the upper end of the mounting cover (6). A first spring (12) is fixedly connected to the inner top wall of the installation partition plate (11). The lower end of the first spring (12) is fixedly connected to a spring support. The upper end of the solenoid valve (10) is fixedly connected to the lower end of the spring support. The lower end of the solenoid valve (10) is fixedly connected to a hydraulic motor (13). The lower end of the hydraulic motor (13) is rotatably connected to a chamber partition plate (14). A dust collection pipe (15) is fixedly connected to the lower end of the chamber partition plate (14). A plurality of dust suction assemblies are fixedly sleeved on the outer surface of the dust collection pipe (15). The dust suction assembly includes two fixing rings (17) sleeved on the outer surface of the dust collection pipe (15). The two fixing rings (17) are fixedly connected by bolts. A suction nozzle (18) is fixedly connected to the outer surface of one of the fixing rings (17). A mounting rod (19) is fixedly connected to the outer surface of the suction nozzle (18). The end of the mounting rod (19) far from the suction nozzle (18) is fixedly connected to an outer rod (20). A second spring (21) is fixedly connected to the circular inner wall of the outer rod (20). The other end of the second spring (21) is fixedly connected to an extension rod (22). The end of the extension rod (22) far from the second spring (21) movably penetrates through the outer rod (20) and is fixedly connected to a scraping plate (23).

2. The hydraulic-driven suction full-automatic self-cleaning filter applied to the thermal power industry according to claim 1, characterized in that: A fixing plug is inserted into the lower end of the dust collection pipe (15). A dust collector shaft (16) is also fixedly connected to the lower end of the hydraulic motor (13). The lower end of the dust collector shaft (16) successively penetrates through the chamber partition plate (14), the dust collection pipe (15), the fixing plug, and the coarse filter screen (8).

3. The hydraulic-driven suction full-automatic self-cleaning filter applied to the thermal power industry according to claim 1, characterized in that: The directions of two adjacent suction nozzles (18) are opposite. A plurality of through holes corresponding to the plurality of dust suction assemblies are drilled on the outer surface of the dust collection pipe (15).

4. The hydraulic-driven suction full-automatic self-cleaning filter applied to the thermal power industry according to claim 1, characterized in that: An installation ring is threadedly connected to the upper end of the upper fine filter screen (9). Gasket rings are provided at the lower end of the coarse filter screen (8) and the upper end of the installation ring. The coarse filter screen (8) is located directly above the water inlet pipe.

5. The hydraulic-driven suction full-automatic self-cleaning filter applied to the thermal power industry according to claim 1, characterized in that: The pressure gauge (3), the solenoid valve (10), and the hydraulic motor (13) are all in signal connection with the hydraulic controller (5).

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